Abstract Propane-1, 3-sultone (1) reacts with phenylhydrazine as well as with acid hydrazides yielding the corresponding sulphonic acids 2a–f in good yields. On reaction of 2, 4-dimethyl-1, 3-butadiene-1, 4-sultone (3) with hydrazides by fusion or in a nonpolar solvent, the sultams 4a–f are obtained, and in alcohols the corresponding sulphonic acids 5a–d or the hydrazine derivative 6 are obtained.